Mockito is currently self-attaching to enable the inline-mock-maker. This will no longer work in future releases of the JDK. Please add Mockito as an agent to your build what is described in Mockito's documentation: https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#0.3 WARNING: A Java agent has been loaded dynamically (/tmp/r/net/bytebuddy/byte-buddy-agent/1.15.3/byte-buddy-agent-1.15.3.jar) WARNING: If a serviceability tool is in use, please run with -XX:+EnableDynamicAgentLoading to hide this warning WARNING: If a serviceability tool is not in use, please run with -Djdk.instrument.traceUsage for more information WARNING: Dynamic loading of agents will be disallowed by default in a future release Mockito is currently self-attaching to enable the inline-mock-maker. This will no longer work in future releases of the JDK. Please add Mockito as an agent to your build what is described in Mockito's documentation: https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#0.3 09:09:09,358 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled 09:09:09,363 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 09:09:09,378 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library cleaned successfully 09:09:09,378 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer stopped 09:09:09,443 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state enabled 09:09:09,444 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 09:09:09,444 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library cleaned successfully 09:09:09,445 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer stopped 09:09:10,753 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 09:09:10,754 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 09:09:10,763 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 09:09:10,764 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled 09:09:10,875 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 09:09:10,875 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 09:09:10,878 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 09:09:10,878 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state enabled 09:09:10,968 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 09:09:10,969 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 09:09:10,970 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 09:09:10,970 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled 09:09:11,53 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 09:09:11,53 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 09:09:11,55 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 09:09:11,55 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state enabled 09:09:11,69 PM [main] [WARN] YangLibraryWriter - ietf-yang-library not present in context, skipping update 09:09:11,69 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled